| coil,tagging omitted |
|
| colored |
|
| colored fiber paper |
|
| Colored paper |
|
| Colored paper of different quality |
|
| Control number on reverse |
|
| Control number to reverse |
|
| copper |
|
| Couché |
|
| Couché phosphorecent |
|
| Couche, Phosphorescent frame |
|
| covered with silk |
|
| Cowan |
|
| Cowan chalky |
|
| Cowan paper |
|
| Cowan Reversed paper |
|
| Cowan thick chalky |
|
| Cowan thick, opaque, chalk-surfaced paper |
|
| Cowan Unsurfaced |
|
| CPI C100 |
|